`x[i]` should be replaced with `x2[i]`, and so on and so forth

[CGMossa]

visualizationQualityControl/src/kendallc.cpp

Line 114 in 5522fa8

((x[i] == na_value) && (x[j] != na_value) && (y[i] == na_value) && (y[j] != na_value));

I sent a DM about this, but I think this is more "neat".

[rmflight]

Closed by a79ac75